Edge Structure Patents (Class 30/357)
  • Patent number: 11273560
    Abstract: A knife may include a blade having first and second blade ends. A blade point may be disposed at the second blade end. A spine may be disposed between the first blade end and the second blade end. A cutting edge may oppose the spine. A primary bevel may be disposed between the spine and the cutting edge. A secondary bevel may be disposed between the primary bevel and the cutting edge. The secondary bevel may include a secondary bevel start line parallel to the spine and along a first longitudinal axis. A ricasso may be positioned at the first blade end adjacent to the cutting edge, the ricasso including a ricasso angle assist bevel. The ricasso angle assist bevel may include a ricasso angle assist bevel start line along a second longitudinal axis, wherein the second longitudinal axis is closer to the spine than the first longitudinal axis.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: March 15, 2022
    Inventor: Steven R. Godfrey
  • Patent number: 10105079
    Abstract: A lancing device includes a lancet body (14) of elongate form and having a sharp tip (16) at the forward end thereof; a drive spring (26) for imparting generally longitudinal movement to the lancet body, and a housing (10) receiving the lancet body and having an aperture (22) in the forward end thereof through which the sharp tip (16) of the lancet body projects in use when the device is fired. The device includes elements (28, 30, 32) for controlling movement of the lancet body (14) to cause the tip of the lancet to execute a lateral movement when it projects from the aperture.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 23, 2018
    Assignee: OWEN MUMFORD LIMITED
    Inventors: Jeremy Marshall, Timothy Evans
  • Patent number: 9009981
    Abstract: A three-sided disposable cutting blade for use within a utility knife. The cutting blade features between three and six distinct cutting portions. The cutting blade may be rotated and flipped such that each cutting portion may be presented from the utility knife as the active cutting portion. Features of the cutting blade include a wear-coat indicator which is located at or near each cutting portion and indicates when a portion has been used; grippable locations on the body of the blade to increase the grippibility of the blade when removing and handling the blade; multiple mounting-hole orientations; and mass-reducing punch-outs which reduce cutting friction of the blade against the object being cut.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: April 21, 2015
    Inventors: Elwood Dean Quimby, Hubert J. Bung
  • Publication number: 20140373694
    Abstract: One aspect of the invention provides a jacket-stripping tool including: a reference stop adapted and configured to contact an end of corrugated stainless steel tubing; and one or more cutting blades arranged substantially perpendicular to a central axis of the tool and adapted and configured to create one or more cuts through one or more external jacket layers of the corrugated stainless steel tubing. At least one of the one or more cutting blades is positioned relative to the reference stop such that the at least one of the one or more cutting blades is a multiple of a distance between adjacent corrugation valleys of the corrugated stainless steel tubing.
    Type: Application
    Filed: July 21, 2014
    Publication date: December 25, 2014
    Inventor: Jordan Strunk
  • Patent number: 8910386
    Abstract: A hand pruner having a first and second handle, the first handle having a hook, formed at a far end, the second handle having a cutting blade formed at the far end. The first handle and hook and second handle and blade pivotally connected for movement with respect to each other. The blade and second handle having a cup formed between the blade and second handle. The hook and first handle having a cup formed between the hook and first handle. The cutting edge of the hook is formed along two concave intersecting arcs of different diameters, the smaller diameter arc located next to the pivot. The cutting edge of the blade is formed along two convex intersecting arcs having diameters that complement the two concave arcs in the hook cutting edge.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: December 16, 2014
    Assignee: Corona Clipper, Inc.
    Inventors: Timothy Edward Atnip, Anthony Magana, James Wolf, Hyok Lee, Jeffrey Robert Burger, Laura Winfield Alexander, Sean Wesley Svendsen
  • Patent number: 8826544
    Abstract: A tool for removal of sealant from grooves adjacent aircraft inspection panels has a handle and a several different removable cutting tool elements. Each removable cutting tool element has at least one sharply defined cutting edge and several sharply defined cutting points.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: September 9, 2014
    Inventor: John David Savage, Jr.
  • Publication number: 20140237827
    Abstract: A utility knife blade includes a portion made of a first material; and an elongated portion made of a second material, the second material being harder than the first material and coated on the first material by melting a powder of the second material on the first material, the elongated portion forming the tip of the blade, wherein the second material includes tungsten carbide particles embedded in a soft binder, and wherein the size of at least 90% of the tungsten carbide particles is lower than about 5 micrometers.
    Type: Application
    Filed: May 6, 2014
    Publication date: August 28, 2014
    Applicant: STANLEY BLACK & DECKER, INC.
    Inventor: Peter Geoffrey Culf
  • Publication number: 20140082948
    Abstract: The claimed subject matter provides a cutting head for oscillating tools including a concave or recessed cutting edge. The cutting edge can be a recessed curve, an angular recess, or a combination of the two. The cutting edge can include one or more of serrations or cutting grit. The cutting head can conform to a variety of work piece geometries and cradle the work piece during cutting to prevent slipping and provide faster cuts by applying a greater proportion of the blade to the work piece at once and retaining the work piece between sides of the recess.
    Type: Application
    Filed: March 11, 2013
    Publication date: March 27, 2014
    Inventor: Herbert W. Staub
  • Publication number: 20140041239
    Abstract: The present invention generally relates to blades for utility knives, craft knives, box cutters, and other cutting tools. Specifically, this invention relates to cutting blades manufactured from ceramics.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 13, 2014
    Inventors: Thomas Scimone, Scott Herbst, Alan Regala
  • Publication number: 20130283624
    Abstract: The present invention generally relates to blades for utility knives, craft knives, box cutters, and other cutting tools. Specifically, this invention relates to cutting blades manufactured from ceramics.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 31, 2013
    Inventors: Thomas Scimone, Scott Herbst, Alan Regala
  • Patent number: 8499673
    Abstract: The present invention relates to methods and apparatus for self-sharpening micro surgical blades, knives and assemblies including those having a cutting edge that is less than 500 angstroms thick where the cutting edge is an exposed section of a thin planar layer or region that is supported on one or both sides by a material having a higher wear rate.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: August 6, 2013
    Assignee: MynoSys Cellular Devices, Inc.
    Inventor: Christopher Guild Keller
  • Patent number: 8460071
    Abstract: This invention is a manual sharpening device for knife blades that creates a micro-serrated edge on the cutting edge of a knife (microscopic saw). There are two types of knife blades on the world market: plain (flat cutting surface) and serrated (undulated cutting surface, also known as saw knives). Each has a wide range of shapes and sizes for various applications. This sharpening tool allows the user to create a cutting edge on any knife that combines the effects of the plain and serrated edge and thereby expands the potential applications of any knife.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: June 11, 2013
    Inventor: Horacio Masseilot
  • Publication number: 20130111767
    Abstract: A knife blade with a back, and a cutting edge with a shoulder, characterised in that the knife blade has a blade profile perpendicular to the blade edge that, starting at the shoulder and moving towards the back, has the following thickness, as ground prior to any polishing or subsequent steps, at the position indicated: at the shoulder a thickness of AA; at about 1/16? from the shoulder a thickness of BB; and at about ?? from the shoulder a thickness of CC; where AA is about 16 to 23 thousandths of an inch (0.41 mm to 0.58 mm); BB is AA plus about 3 thousandths of an inch (0.076 mm); and CC is BB plus about 2 thousandths of an inch. (0.051 mm).
    Type: Application
    Filed: July 22, 2011
    Publication date: May 9, 2013
    Inventors: Reuben Jon Davis, Derek Richard Senior
  • Patent number: 8281494
    Abstract: A surgical blade adapted to be typically used in medical procedures is disclosed. The blade is provided with markings located near the cutting edge. The markings are configured to be indicative of the depth of the blade and/or of the cutting edge during the incision of an organic tissue. The markings are configured to substantially follow the shape of the cutting edge such as to indicate the depth of the blade substantially independently of the orientation thereof.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: October 9, 2012
    Inventor: Katya Archambault
  • Publication number: 20120210583
    Abstract: The present invention is related to a method for manufacturing a blade body of a nail clipper having a 3-dimensional inclined curve-type blade, including steps of forming an inclined curve with a curvature Ra using a boundary line which is formed when the periphery of grinding media with a radius Rg in an upright position is merged with an upper inclined surface having a predetermined angle ?1 with respect to a vertical line, forming a lower inclined surface by extending the inclined curve downward at an angle ?2 corresponding to the angle ?1, forming blade bodies using the upper and lower inclined surfaces to be inner inclined surfaces of the blade bodies, and grinding the ends of the upper and lower inclined surfaces simultaneously via grinding media with the radius Rg, whereby forming upper and lower 3-dimensional inclined curve-type blades with the curvature Ra, respectively.
    Type: Application
    Filed: March 16, 2012
    Publication date: August 23, 2012
    Inventors: Jeong Sik HAN, Gyoung Hee Kim
  • Patent number: 8186064
    Abstract: Shaving apparatus with cutting members which are movable relative to one another and are each provided with a row of substantially V-shaped teeth having edges, a cutting opening between each pair of cooperating teeth for catching hairs, said cutting opening having a shearing angle between 1° and 30°, wherein the cutting openings are not completely closed during operation of the shaving apparatus.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: May 29, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Johan Pragt, Fokke Roelof Voorhorst, Jan Spoelstra, Alastair Ian Blake, Bastiaan Johannes De Wit, Jasper Zuidervaart, Albert Maas De Lange, Anna Dirkje Bosma
  • Publication number: 20120123444
    Abstract: The invention relates to an optical blade and a hair cutting device, adapted for cutting a hair near skin of a human body part or animal body part. The optical blade (1), especially for use in a hair cutting device, comprises a blade body (3) adapted for guiding optical radiation, and a tapered end (2) adapted for allowing the optical radiation to exit the optical blade (1), wherein the tapered end (2) comprises a reflector adapted for redirecting the optical radiation before it exits the optical blade. In this way the balance of closeness vs. irritation is improved beyond the capabilities of conventional shaving systems and an optical blade is provided which is insensitive to the type of shaving additive used, while the manufacturing of the optical blade is made easier and costs are reduced.
    Type: Application
    Filed: July 14, 2010
    Publication date: May 17, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Rieko Verhagen, Robbert Adrianus Maria van Hal, Bart Willem Jan Spikker, Natallia Eduardauna Uzunbajakawa, Babu Varghese, Paul Anton Josef Ackermans
  • Publication number: 20120102763
    Abstract: An improved longer life center blade for use in an existing metal cutting shear, by providing a center blade with a unique yoke profile, a reinforced bottom and a larger grind transition location.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Applicant: KETT TOOL COMPANY
    Inventor: Alexander Rozumovich
  • Publication number: 20120042526
    Abstract: A knife blade includes a blade body having first and second major surfaces which respectively have marginal regions that extend toward a cutting line to form a cutting edge. The cutting edge includes successive cutting edge areas, at least one of which is cut along an inclined plane to form upstream and downstream surfaces. The downstream surface is configured to extend to join one of the first and second major surfaces to form, in terms of one cutting direction, a leading edge which forms a piercing site at the corresponding cutting edge area. With the cutting edge together with the piercing site of the leading edge, a food product having soft and hard textures may be cut effortlessly.
    Type: Application
    Filed: August 2, 2011
    Publication date: February 23, 2012
    Inventor: Wu-Lang Chan
  • Patent number: 8037612
    Abstract: A handheld tactical knife comprising a hilt and an elongated knife blade with a substantially triangular cross section. A spine runs on the top of said elongated knife blade, and tapers from the hilt to a tip of the blade. A main cutting edge is located on the bottom of said elongated knife blade, and at least one scallop is cut into the main cutting edge. At least one scallop transitions into a gut hook with a gut hook tip, and a flat spreading surface is located between the gut hook tip and the tip of the blade. The substantially triangular cross section of the elongated knife blade transitions to a substantially trapezoidal cross section at the flat spreading surface.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: October 18, 2011
    Inventors: Jeremiah Hansen, Thomas Della-Penna
  • Patent number: 7963042
    Abstract: The present invention relates to methods and apparatus for micro surgical blades, knives and assemblies.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: June 21, 2011
    Assignee: MynoSys Cellular Devices, Inc.
    Inventor: Christopher Guild Keller
  • Publication number: 20110113636
    Abstract: A blade for paper punches includes a hollow tubular body with a passage defined axially therethrough and an inclined edge is defined in a lower end of the body. An angle between the inclined edge and a stack of paper sheet is in a range between 15 to 50 degrees. A spring is located in the passage of the body so as to bias a push rod which is movable in the passage to remove debris from the passage.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 19, 2011
    Inventor: Chien Chuan HUANG
  • Patent number: 7908949
    Abstract: A windshield removal assembly, method and blade for same, with the thin metal blade having a unique delta-shape. The blade connects at its narrowed shank portion to the shaft of a reciprocating power tool. The blade has front and rear ends, the front end being substantially straight and wider than the blade rear end. The top edge of the blade forms a non-sharpened top edge on the front end and arc portions, while the bottom edge of the blade forms a sharpened bottom cutting edge which extends across the front end of the blade and along at least half of the arc portions. The blade has sufficient rigidity to cut the urethane bed when reciprocated, and sufficient lateral flexibility to conform to the curved surface of the windshield when pressed thereagainst.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: March 22, 2011
    Assignee: Crystal Glass Canada Ltd.
    Inventor: Alfred John Ogston
  • Publication number: 20100319199
    Abstract: Apparatus for accessing a length of a selected one or more of a plurality of optical fibers within an outer protective jacket of a cable including the plurality of optical fibers and at least one strength member extending along a longitudinal axis of the cable include a cutting member and a cutter blade positioned in the cutting member. The cutter blade has a cutting edge with a middle region of a first sharpness and outer side regions adjacent opposite sides of the middle region of a second sharpness that is sharper than the first sharpness.
    Type: Application
    Filed: March 26, 2010
    Publication date: December 23, 2010
    Inventors: Julian Mullaney, Justin Everette Thompson
  • Publication number: 20100299942
    Abstract: A serrated blade for an arrowhead, a crossbow bolt and/or another suitable projectile. The blade has a first blade surface that intersects with a second blade surface to form at least one cutting edge. The blade also has a mixed serration section of at least one small serration and at least one large serration. The mixed serration section is positioned adjacent to at least one cutting edge. The serrated configuration of this invention allows the blade to cut in a saw-like manner as the blade passes in a forward direction through a target material.
    Type: Application
    Filed: June 2, 2009
    Publication date: December 2, 2010
    Inventors: Miroslav A. Simo, Robert S. Mizek
  • Publication number: 20100187276
    Abstract: An optical fiber cutting device and method, and optical fiber cutting blade member in which excellent workability is obtained by a simple configuration, and a cost reduction can be attained are provided.
    Type: Application
    Filed: October 24, 2008
    Publication date: July 29, 2010
    Inventors: Masaki Ohmura, Kenichiro Ohtsuka, Mitsuaki Tamura, Katsuji Sakamoto, Mitsuru Kihara, Hitochi Son, Ryo Koyama
  • Publication number: 20100101100
    Abstract: Handheld tactical knife combining structural features of a structurally advantageous and stress distributing base cross section (FIG. 2A), a penetrating tip (220), tapers in perpendicular axis along the blade length (FIG. 2, FIG. 3), and a cutting edge (212). The preferred embodiment contains scallops (214), a gut hook (218), and a penetrating chisel-type tip (220).
    Type: Application
    Filed: October 27, 2008
    Publication date: April 29, 2010
    Inventors: Jeremiah John Hansen, Thomas John Della-Penna
  • Patent number: 7681317
    Abstract: A de-icicling tool has an icicle removing head mounted onto the distal end of an elongated handle. The head is formed of a generally flat blade and a mounting sleeve to that fits onto the distal end of the handle. The blade member has a series of triangular teeth in a concave arc along the front with each tooth having a point and beveled edges which meet at the associated point. The points of the teeth are rounded. The blade has at least one generally triangular notch formed along its rear thereof, each notch having a pair of beveled edges. There is one or more one round aperture in the blade, each with a beveled edge and with a diameter of three to five centimeters. The mounting sleeve includes a threaded socket adapted to accept a male thread of a standard broom handle or paint pole.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: March 23, 2010
    Inventor: Edward V. Fagan
  • Publication number: 20090320299
    Abstract: A scraper blade preferably configured for use with a reciprocating saw. The blade has a first end comprising a mounting structure, and a second end with a cutting edge. The second end is coupled with and spaced apart from the first end. Preferably, the first end is configured to be mounted in a reciprocating saw chuck and the first and second ends are integral. Further, the first and second ends are preferably manufactured from heat treated steel comprising between approximately 0.45 to 1.05% carbon and between approximately 0.3 to 1.0% manganese. Preferably, the steel has a yield tensile strength of between approximately 150,000 to 250,000 pounds per square inch, a modulus of elasticity of between approximately 20,000 to 40,000 kilopounds per square inch, and a hardness on the Rockwell C scale of between approximately 30 to 60.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 31, 2009
    Inventors: Justin Kuhn, Brad Allen, Ryan Campbell
  • Publication number: 20090264051
    Abstract: A self-sharpening tool blade is to be used on shovels, spades, cultivating tools, garden hand tools, and other tools and mechanical equipment which need to have consistently sharp cutting edges in order to penetrate into and dig in the ground. The blade utilizes the concept of differential surface wear for self-sharpening. The back side of the tool blade sustains more wear than the top side, since it is most often in contact with more abrasive soil and earth debris, while the blade's top side is usually in contact with abrasive materials which exert less abrasion and less pressure than that which the back side experiences. This is due to the manner in which digging occurs; that is the top side of the blade contacts soil and soil debris which is free to move away from the blade during digging, whereas soil material contacting the back side of the blade is, for the most part, compacted and immovable, providing a higher degree of abrasive friction.
    Type: Application
    Filed: April 21, 2008
    Publication date: October 22, 2009
    Inventor: Peter W. Lesche
  • Publication number: 20090119932
    Abstract: A curved and toothed cutting blade for a trimmer comprising a base body having at least a connecting member for mounting onto a trimmer and a longitudinal cutting edge on one side which is symmetrically concave downward and has teeth, wherein the curve of the cutting edge is in the form of a segment of the interior of a circular arc of a lens with the two interior angles of any teeth not having different degrees of angle and the dent in between any two teeth being not perpendicular to the base pitch of the tips of the two teeth and slanted towards the center point of the curve of the cutting edge; and a grinding wheel for manufacturing the cutting blade, wherein the cutting blade is manufactured by a grinding wheel which is in the form of a lens with the two endpoints truncated with diameter being the largest in the middle and gradually decreasing towards the two ends and the surface of which has grooves of sizes and shapes which correspond to the sizes and shapes of the teeth of the cutting blade.
    Type: Application
    Filed: November 10, 2007
    Publication date: May 14, 2009
    Applicant: SPECIALIFE INDUSTRIES LIMITED
    Inventor: Tung Yan LAU
  • Publication number: 20090064508
    Abstract: This invention is a manual sharpening device for knife blades that creates a micro-serrated edge on the cutting edge of a knife (microscopic saw). There are two types of knife blades on the world market: plain (flat cutting surface) and serrated (undulated cutting surface, also known as saw knives). Each has a wide range of shapes and sizes for various applications. This sharpening tool allows the user to create a cutting edge on any knife that combines the effects of the plain and serrated edge and thereby expands the potential applications of any knife.
    Type: Application
    Filed: August 22, 2008
    Publication date: March 12, 2009
    Inventor: Horacio Masseilot
  • Publication number: 20080235960
    Abstract: The invention concerns a method for manufacturing a blade (10), in which at least the composite base structure (15) of the blade (10) is manufactured in a pultrusion process (20) by pulling fibres (11) through at least an impregnation stage (12) and a curing stage (14), the base structure (15) is equipped with at least one wear area (16.1, 16.2), and the said blade (10) is detached from a blade blank (22) formed of a base structure (15) and a wear area (16.1, 16.2). The wear area of the blade (10) is formed of an edge-structure part (16.1, 16.2) protruding out side the edge of the base structure (15). In addition, the invention also concerns a corresponding blade and part components for manufacturing a blade according to the invention.
    Type: Application
    Filed: September 26, 2006
    Publication date: October 2, 2008
    Applicant: IKE-SERVICE TOY
    Inventor: IIkka Eskelinen
  • Patent number: 7386941
    Abstract: A triple function slitting, picking, and holding safety blade for use in the graphic arts trade; for slitting through, picking up, and holding portions of computer cut vinyl adhesive material. A slight rotation of a user's blade holding tool changes a blade's function from slitting to picking to hold-down modes with increased user safety with its restricted blade penetration and with fewer carpal tunnel stress motions required in its use. A notch within a cutting edge of and near to the apex point of a generally triangular shaped cutting blade end exposes a new cutting edge. A bend is located between the newly exposed cutting edge and the apex point to further expose the new cutting edge for sufficient clearance to slit a vinyl material's planar surface. An exterior portion of the bend serves as a blunt stylus type hold down tool which prevents any piercing of the vinyl material's surface.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: June 17, 2008
    Inventors: Terry Lee Wagenknecht, Samuel James Wagenknecht, Charles Maxwell Wagenknecht
  • Patent number: 7337545
    Abstract: One exemplary embodiment of the present invention provides a folding knife comprising a blade (1), a blade housing (2) having an interior and an exterior, a folding element (7) connecting the blade (1) to the interior (4-1/4-2) of the blade housing (2), and one or more sharpening elements, e.g., (18-2) connected to the interior (4-1/4-2) of the blade housing (2). In one embodiment, the folding blade 1 comprises a convex side (13-1) with an angled bevel (10-2?/10-2?) and further comprises a hollow ground side (13-2?) with a small raised flat bevel (10-1?), the blade 1 further comprising a sharp edge (11) formed by the intersection of the angled bevel (10-2?/10-2?) and the small raised flat bevel (10-1?). A method of making such folding knife blades is also provided.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: March 4, 2008
    Inventors: Richard H. Miltner, Julie L. Adams
  • Patent number: 7334339
    Abstract: In an exemplary sharpening element storage embodiment of the present invention, a sharpening element (5000) may be inserted in a groove (5001) that would be provided in an interior wall (5004) of a knife handle (or knife blade housing) (5005). When the first notch (5002), located in the blade's tongue (5003), in the knife blade (5006) is aligned with the conforming shape of the first end (5008) of the groove (5001), it would be possible to move the sharpening element (5000) in the direction of the opposing handle part (not shown), out from the groove (5001), in order to extract the sharpening element (5000) completely out from the knife handle (5005) for use.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: February 26, 2008
    Inventors: Richard H. Miltner, Julie L. Adams
  • Publication number: 20080016704
    Abstract: The present invention is a cutting tool having a cutting feature formed along substantially all of a cutting edge formed along a portion of the blade of the edged tool. The cutting feature is characterized by a cutting edge, a first thickness behind the cutting edge, and a second thickness behind the first thickness, with the second thickness being less than the first thickness. The second thickness is preferably established within the first 20% of the depth of the blade adjacent the cutting edge.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 24, 2008
    Inventor: Hisatsugu Henry Haneda
  • Patent number: 7290341
    Abstract: A knife is disclosed for cutting crop materials, and includes a base portion having an interior edge and a pair of end edges. The base portion has an exterior region opposite the interior edge and has opposite major faces. The knife further includes a plurality of teeth extending from the base portion, with each tooth being defined by a perimeter edge. The perimeter edge of the tooth includes a leading edge portion and a transition edge portion extending between the leading edge portion of the tooth and an adjacent tooth. The leading edge portion is formed by a leading edge surface lying substantially in a plane that is oriented at a first bevel angle with respect to one of the major faces. The transition edge portion is formed by a transition edge surface that is oriented with respect to one of the major faces at a second bevel angle.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: November 6, 2007
    Inventor: Phillip Kooima
  • Patent number: 7174640
    Abstract: The present invention presents a pliers-like hand tool with special shaped cutting edges and grooved guides in the jaws of the tool so that when used to cut off the unwanted ends of cable ties the cable tie can be guided into the tool and positioned for cuffing the end of the cable tie leaving a smooth rounded end on the cable tie.
    Type: Grant
    Filed: November 25, 2005
    Date of Patent: February 13, 2007
    Inventor: Bert Vinson Elkins
  • Patent number: 7155831
    Abstract: A ceramic cutting tool (100) is for high speed cutting of light, thin and soft materials. The ceramic cutting tool includes an upper blade (10) and a lower blade (20) both made of ceramic material. The upper and lower blades therefore possess extremely high hardness, and excellent wear resistance and heat resistance. This increases an operating lifetime of the ceramic cutting tool. Furthermore, the lower blade can alternatively be a lower blade assembly (30). The lower blade assembly includes a metal base (32), and a ceramic edge insert (31) detachably mounted in the metal base. If the ceramic edge insert becomes worn or is damaged, it can be easily replaced by a new ceramic edge insert. There is no need to replace the metal base.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: January 2, 2007
    Assignees: Hong Fu Jin Precision Ind. (Shenzhen) Co., Ltd., Hon Hai Precision Ind. Co., Ltd.
    Inventors: Gwo-Yan Huang, Yan-Li Xu, Chun He, Wu-Kuang Chen, Chih-Chien Hung, Mu-Chi Hsu, Yi-Ta Chung
  • Patent number: 7082686
    Abstract: An angled shank blade for a carpet or tile stripping machine with a flat bottomed blade for engaging the surface of a floor. The leading edge of the blade having an angle of about 20 degrees, followed by a tapered top surface portion and a rear portion. An angled blade head attached to the rear portion and angled upward at about 20 degrees. A shank attached to the blade at an angle of about 20 degrees for receiving the weight of the floor stripping machine and keeping the blade parallel to the floor while lifting the flooring material over the leading edge, the tapered portion, the blade head and shank smoothly and efficiently without binding. The blade may have a carbide insert for long lasting skiving of material from the floor.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: August 1, 2006
    Inventor: Martin L. Anderson
  • Patent number: 7013569
    Abstract: A cutting tool includes an elongate handle to be grasped by a user, and an elongate blade connected to the elongate handle. The elongate blade includes a substantially linear proximal portion extending longitudinally outwardly from an end of the handle, and a curved distal portion extending in a downward and forward curve from the proximal portion and ending in a tapered tip. The linear proximal portion and curved distal portion may have about equal lengths. The linear proximal portion may have a sharpened lower edge and the curved distal portion may have sharpened upper and lower edges. In some embodiments, the elongate blade may have a length of less than about twelve inches so that the cutting tool is a knife, and in other embodiments, the elongate blade may have a length of greater than about twelve inches so that the cutting tool is a sword.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: March 21, 2006
    Inventor: Christopher A. Holler
  • Patent number: 7000322
    Abstract: A laminated blade assembly for cutting the insulation of a wire to permit removal of the insulation from the wire. The blade assembly includes a stationary member and a movable member which are formed to contact each other when moved together to support and cut the insulation of the wire. Each of the members includes a blade sandwiched between a pair of wire insulation supports. A number of grooves of different transverse cross-sectional sizes are formed in each support and are spaced apart from one another in a direction longitudinally of the edge of the support. One of the stationary and one of the movable members is a lower member and the other is an upper member with these members encircling the insulated wire when the members are moved together. Each of the grooves of the lower portion encircle more than one half of the cross-section of the insulated wire.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: February 21, 2006
    Assignee: IDEAL Industries, Inc.
    Inventor: Stacey A. Murphy
  • Patent number: 6986208
    Abstract: A blade has a hard, thin layer of ceramic on one side, so that when the blade is sharpened on the other side the very hard ceramic is disposed at the cutting edge. The ceramic (for example, TiN) may be deposited by vacuum deposition. The surface onto which the ceramic is deposited is specular (mirror-like), so that it is flat or smooth on the order of a wavelength of light. The ceramic layer, which is very thin, takes the form of a flat plate, when viewed on a microscopic scale. The ceramic forms a cutting plate at the edge of the blade.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: January 17, 2006
    Inventor: Nicholas S. Bromer
  • Patent number: 6817103
    Abstract: A bonded layer protection structure of a wear resistant component, comprising a wear resistant component such as a cutting tool constructed by bonding a wear resistant member such as a cutting portion to a main body portion such as a base metal by an adhesive. In this case, a necessary part of an adhesive layer exposed portion in a bonded portion between the wear resistant member and the main body portion is covered with a filler or a covering material. In addition, in the wear resistant component such as the cutting tool, a necessary part of the adhesive layer exposed portion in the bonded portion between the wear resistant member and the main body portion is covered with a sticking member.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: November 16, 2004
    Assignee: Kanefusa Kabushiki Kaisha
    Inventors: Norio Ogura, Hisayasu Watanabe, Takema Isogaya
  • Patent number: 6813835
    Abstract: The beveled face of the cutting blade presents, in cross-section and going from its cutting edge: a first zone making a first angle with the plane face of the cutting blade; and a second zone making a second angle with the plane face of the cutting blade, the second angle being smaller than the first angle. The second angle has a minimum value in the region of the cutting blade close to the shoulder and a maximum value in a region of the cutting blade close to the tip of the cutting blade.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: November 9, 2004
    Assignee: Deville SA
    Inventor: Antoine Deville
  • Patent number: 6813834
    Abstract: An angled shank blade for a carpet or tile stripping machine with a flat blade for engaging the surface of a floor. A shank attached to the blade at an angle for receiving the weight of the floor stripping machine and keeping the blade parallel to the floor. The blade has a carbide insert for long lasting skiving of material from the floor. The carbide tip is easily replaced to keep the leading edge sharp. The carbide insert being held parallel to the floor by the blade such that it cuts at a preferred carbide blade tip angle of about 45 degrees with respect to the surface of the floor.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: November 9, 2004
    Inventor: Martin L. Anderson
  • Patent number: 6811477
    Abstract: A handsaw capable of cutting a glass bottle includes a band-like handsaw substrate which is obtained by cutting a steel strip at a predetermined length, a blade portion of hard abrasive applied, by deposition, to at least one edge of the band-like handsaw substrate in the width direction, and a grip portion which allows the band-like handsaw substrate to be manually held. A method for manufacturing a handsaw capable of cutting a glass bottle, and a method for reusing empty wine bottles are also disclosed.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: November 2, 2004
    Assignee: Funasaw Co., Ltd.
    Inventor: Masayoshi Funakubo
  • Patent number: 6796212
    Abstract: A cutter wheel for brittle materials includes a disk with two side planes and an outer peripheral portion between the planes. The outer peripheral portion includes two bevel portions and a ridge portion between the bevel portions. The ridge portion has a plurality of peaks aligned along a circumferential line. For example, the ridge portion includes a straight line connecting two adjacent peaks in the plurality of peaks. Alternatively, the ridge portion is a depression between two adjacent peaks in the plurality of peaks, and the depth of the depression is deeper than the straight line connecting the two adjacent peaks. Preferably, the peaks are spaced apart at an equal distance.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: September 28, 2004
    Assignee: Mitsuboshi Diamond Industrial Co., Ltd.
    Inventors: Kazuya Maekawa, Haruo Wakayama
  • Publication number: 20040181950
    Abstract: A cutting tool (20) for a microkeratome (4) is disclosed. This cutting tool (20) includes a blade handle (24) and a separate cutting blade (56). Both the blade handle (24) and cutting blade (56) include features to register or align a cutting edge (80) of the cutting blade (56) with a microkeratome registration surface (28) of the blade handle (24). This microkeratome registration surface (28) of the blade handle (24) interfaces with a cutting tool registration surface (14) of a head assembly (10) of the microkeratome (4) on which the cutting tool (20) is installed. Therefore, the cutting edge (80) of the cutting blade (56) is registered or aligned relative to the cutting tool registration surface (14) of the head assembly (10) of the microkeratome (4).
    Type: Application
    Filed: March 17, 2003
    Publication date: September 23, 2004
    Inventors: Murray Steven Rodgers, Norman Frank Smith, Jeffry Joseph Sniegowski, Stephen Matthew Barnes, Paul Jackson McWhorter